html,body{
	height: 100%;
}
#app{
	height: 100%;
	width: 100%;
	display: flex;
	flex-direction: column;
}
header,footer{
	height: 46px;
	line-height: 46px;
	background-color: #ED6A0C;
	text-align: center;
}
section{
	flex: 1;
	overflow-y: scroll;
}
::-webkit-scrollbar{
	display: none;/*清楚滚动条*/
}
